Mechanical devices which functon as energy bases for actuating safety and ming devices are described. A fluidic oscillator mounted in the nose of a missile or other similar device is provided and includes a diaphragm which is driven into oscillation by ram air entering the oscillator. A

A dual signature arming mechanism responsive to acceleration to cock a fig pin and responsive to propellant combustion gas pressure to pyrotechnically release a pivotally mounted detonator which rotates into position relative to said firing pin. A plunger restrained by the pyrotechn